Glueless folding envelope



FIG. 1 is a developed plan view of the glueless folding envelope showing my new design, it being understood that the broken lines represent fold lines;

FIG. 2 is an enlarged front elevation view thereof in folded condition, it being understood that the broken lines are for illustrative purposes only and form no part of the claimed design;

FIG. 3 is a rear elevation view of FIG. 2;

FIG. 4 is a rear elevation view thereof in partially folded condition on a slightly enlarged scale; and,

FIG. 5 is a right side elevation view of FIG. 4. 

The ornamental design for a glueless folding envelope, as shown and described. 